Table Of Contents
Multilayer Switching Commands
This chapter documents commands used to configure Multilayer Switching in Cisco IOS software. For guidelines on configuring Multilayer Switching, refer to the Cisco IOS Switching Services Configuration Guide.
Note
Beginning with Cisco IOS Release 11.3, all commands supported on the Cisco 7500 series routers are also supported on Cisco 7000 series routers.
mls rp ip
To enable Multilayer Switching Protocol (MLSP), use the mls rp ip global configuration command. MLSP is the protocol that runs between the switches and routers. Use the no form of this command to disable MLS.
mls rp ip
no mls rp ip
Syntax Description
There are no arguments or keywords for this command.
Defaults
The default is MLS disabled.
Command Modes
Global configuration
Command History
Usage Guidelines
Use this command to enable Multilayer Switching, either globally or on a specific interface.
Examples
The following example enables MLS:
mls rp ipRelated Commands
mls rp management-interface
To designate an interface as the management interface for MLSP packets, use the mls rp management-interface interface configuration command. Use the no version of the command to remove an interface as the management interface.
mls rp management-interface
no mls rp management-interface
Syntax Description
This command has no arguments or keywords.
Defaults
There is no default management interface.
Command Modes
Interface configuration
Command History
Usage Guidelines
Use this command to designate an interface as the MLSP management interface. You must specify a router interface as a management interface. If you do not specify an interface, MLSP packets will not be sent or received.
The management interface can be any MLS interface connected to the Catalyst 5000 series switch. Specifying more than one interface is not necessary.
Examples
The following example sets the current interface as the management interface:
mls rp management-interfaceRelated Commands
mls rp nde-address
To specify a NetFlow Data Export address, use the mls rp nde-address global configuration command.
mls rp nde-address ip-address
Syntax Description
Command Modes
Global configuration
Command History
Usage Guidelines
Use this command on an RP to specify the NetFlow Data Export address for a router. If you do not specify an NDE IP address for the MLS-RP, the MLS-RP automatically selects one of its interface's IP addresses and uses that IP address as its NDE IP address and its mls ip address.
Examples
The following example sets the NDE address to 170.25.2.1:
mls rp nde-address 170.25.2.1Related Commands
mls rp vlan-id
To assign a VLAN ID, use the mls ip vlan-id interface configuration command.
mls rp vlan-id vlan-id-num
Syntax Description
Command Modes
Interface configuration
Command History
Usage Guidelines
Use this command to assign a VLAN ID to an interface. RSM VLAN interfaces or ISL-encapsulated interfaces do not require the VLAN ID to be assigned.
Examples
The following example assigns a VLAN ID of 23 to the current interface:
mls rp vlan-id 23Related Commands
mls rp vtp-domain
To select the router interface to be Layer 3 switched and then add that interface to a VLAN Trunking Protocol (VTP) domain, use the mls rp vtp-domain interface configuration command.
mls rp vtp-domain domain-name
Syntax Description
Command Modes
EXEC
Command History
Usage Guidelines
This command is required only if the Catalyst switch is in a VTP domain. For an ISL interface, you can enter this command only on the primary interface. All subinterfaces that are part of the primary interface inherit the primary's VTP domain.
Examples
The following example adds the interface to the engineering VTP domain:
mls rp vtp-domain engineeringRelated Commands
show mls rp
To display MLS details, including specifics for MLSP, use the show mls rp EXEC command.
show mls rp [interface]
Syntax Description
interface
(Optional) Displays information for one interface. Without this argument, detailed view of all interfaces are displayed.
Command Modes
EXEC
Command History
Examples
The following is sample output for the show mls rp command:
router# show mls rpmultilayer switching is globally enabledmls id is 00e0.fefc.6000mls ip address 10.20.26.64mls flow mask is ip-flowvlan domain name: WBUcurrent flow mask: ip-flowcurrent sequence number: 80709115current/maximum retry count: 0/10current domain state: no-changecurrent/next global purge: false/falsecurrent/next purge count: 0/0domain uptime: 13:03:19keepalive timer expires in 9 secondsretry timer not runningchange timer not runningfcp subblock count = 71 management interface(s) currently defined:vlan 1 on Vlan17 mac-vlan(s) configured for multi-layer switching:mac 00e0.fefc.6000vlan id(s)1 10 91 92 93 95 100router currently aware of following 1 switch(es):switch id 0010.1192.b5ff
The following is sample output for the show mls rp command for a specific interface:
router# show mls rp int vlan 10mls active on Vlan10, domain WBUrouter#Related Commands
show mls rp vtp-domain
To show MLS interfaces for a specific VTP domain, use the show mls rp vtp-domain EXEC command.
show mls rp vtp-domain [domain-name]
Syntax Description
Command Modes
EXEC
Command History
Examples
The following example is sample output from the show mls rp vtp-domain command:
router# show mls rp vtp-domain WBUvlan domain name: WBUcurrent flow mask: ip-flowcurrent sequence number: 80709115current/maximum retry count: 0/10current domain state: no-changecurrent/next global purge: false/falsecurrent/next purge count: 0/0domain uptime: 13:07:36keepalive timer expires in 8 secondsretry timer not runningchange timer not runningfcp subblock count = 71 management interface(s) currently defined:vlan 1 on Vlan17 mac-vlan(s) configured for multi-layer switching:mac 00e0.fefc.6000vlan id(s)1 10 91 92 93 95 100router currently aware of following 1 switch(es):switch id 0010.1192.b5ffRelated Commands
